Fly Gap Road pegmatites: Amazonite & Feldspar Rockhounding in Mason County, Texas

Updated August 2026

Fly Gap Road pegmatites is a mapped rockhounding spot in Mason County, Texas. Reported finds include amazonite, feldspar, smoky quartz, quartz, black tourmaline, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Mason County
State: Texas
Nearest road: Fly Gap Road
Coordinates: 30.87332, -99.04397

Geology at Fly Gap Road pegmatites

This spot sits on Valley Spring Gneiss, mapped as paragneiss that formed roughly 2500 to 540 million years ago. Metamorphic terrain like this typically carries quartz veins and sweats, and weathered crystals tend to end up in the soils and streams below.

Mapped unit: Valley Spring Gneiss
Age: 2500–540 Ma (Proterozoic)
Rock types: paragneiss
Elevation: 1,550 ft

Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.

Best time to visit Fly Gap Road pegmatites

Best months: September to May. Typical highs run 95°F in midsummer and 61°F in midwinter, with winter lows near 34°F. Summer heat here is intense, so carry more water than you think you need and work the early morning.

Climate normals: NOAA 1991-2020 monthlies, MASON station (14 mi away).

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

State guidance last verified: April 1, 2026

Texas Parks and Wildlife Department
Bureau of Economic Geology — Texas geology
Big Bend National Park — Rules
Community submissions reviewed against published agency rules

Found at Fly Gap Road pegmatites

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Nearby rockhounding spots

Other rockhounding spots within driving distance of Fly Gap Road pegmatites.

Fly Gap Road pegmatites FAQ

Where is Fly Gap Road pegmatites?+

Fly Gap Road pegmatites is in Mason County, Texas, at 30.87332, -99.04397. Nearest road: Fly Gap Road.

What rocks and minerals can you find at Fly Gap Road pegmatites?+

Fly Gap Road pegmatites is reported to produce Amazonite, Feldspar, Smoky Quartz, Quartz, Black Tourmaline, Muscovite, Garnet.

Is collecting allowed at Fly Gap Road pegmatites?+

Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Fly Gap Road pegmatites?+

A rock hammer, a small pry bar, gloves, and safety glasses cover most crystal ground. A screen helps in loose pocket soil, and newspaper protects points on the way out.

When is the best time to visit Fly Gap Road pegmatites?+

The most comfortable months at Fly Gap Road pegmatites are September to May. Summer heat here is intense, so carry more water than you think you need and work the early morning.

How do I get to Fly Gap Road pegmatites?+

Open the directions link to navigate to 30.87332, -99.04397 in Google Maps. The nearest road is Fly Gap Road.

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